Overview
Ardning wastewater treatment plant in Steiermark, Austria, serves 1,236 people with advanced treatment. It discharges 371.92 m³/day and has a designed capacity of 2,000 m³/day.
Ardning wastewater treatment plant is located in the municipality of Ardning, Bezirk Liezen, in the state of Steiermark, Austria. The plant serves a population of 1,236 and operates with advanced treatment technology, ensuring high-quality effluent before discharge. The plant has a designed capacity of 2,000 m³/day and currently treats an average daily flow of 371.92 m³/day, indicating significant spare capacity. As an Austrian facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for small agglomerations to protect receiving waters. The treated effluent is discharged into local watercourses that ultimately drain into the Enns River, a major tributary of the Danube. The Danube then flows into the Black Sea, making this plant part of a vast international river basin. The advanced treatment level helps protect downstream aquatic ecosystems in the Enns and Danube.
Environmental context
The plant discharges into small streams that feed the Enns River, which flows through the Gesäuse National Park region before joining the Danube. The Danube carries water across Central and Eastern Europe to the Black Sea. The advanced treatment ensures minimal nutrient and pollutant loading, protecting sensitive aquatic habitats in the Enns and Danube, including fish spawning grounds and diverse macroinvertebrate communities.
Frequently asked questions
The plant is located in Ardning, Bezirk Liezen, in the state of Steiermark, Austria, at Gesäusestraße.
The plant serves a population of 1,236 people in the Ardning area.
The plant discharges treated effluent into local streams that flow into the Enns River, a tributary of the Danube, which ultimately reaches the Black Sea.
The plant provides advanced treatment, which includes nutrient removal beyond secondary treatment, ensuring high-quality effluent.
As an Austrian plant serving a small agglomeration, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment to protect the receiving water environment.
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